Builtins and standard library

[metaphori]

Originally reported by: Roberto Casadei (Bitbucket: metaphori, GitHub: metaphori)

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Currently, the standard library is implemented in a module, stdlib, which is distinguished from the core module. However, the core module does provide some library support (cf., RichLanguage component and its Builtins).

The idea behind a separated stdlib module lies in the fact of keeping the core minimal and with few dependencies.

Basically, this task is about considering, from the point of view of design:

• whether to maintain this arrangement; or
• whether to move the stdlib to core; or
• whether to move builtins from core to stdlib..

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• Bitbucket: https://bitbucket.org/scafiteam/scafi/issue/6